Errors:
Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.
Bad value “UTF8” for attribute “charset” on element “meta”: “utf8” is not a preferred encoding name. The preferred label for this encoding is “utf-8”.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “cleartype” for attribute “http-equiv” on element “meta”.
A document must not include more than one “meta” element with its “name” attribute set to the value “description”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The element “button” must not appear as a descendant of the “a” element.
Element “p” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Element “p” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “src” on element “source”: Must be non-empty.
Element “h3” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “main” role is unnecessary for element “main”.
The value of attribute “poster” on element “video” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.
This document appears to be written in Swedish. Consider adding “lang="sv"” (or variant) to the “html” start tag.
Sweden SE